First new content is a speaker option for players. Its hard to play and type to communicate, so I think a speaker option should be added to communicate like in WOW.

Second: for new ability content for harder fights in the future, players could have a individual limite break mode to enhance skills based on that skill, for example a ninjas raton when under limite break mode its potency can be up to 600, and aoe targets. lots of ways to add more damage or support in future fights as the game expansion progress.

Third and final is as we know FF & remake will be coming next year or earlier, so in celebration before the game is released, maybe add a trial boss being either ruby or emerald weapon as a ex primal, or optional boss.

If anyone is able to make this post visible to yoshida, hopefully these suggestions can be of great fun.